diff --git a/drivers/staging/usbip/stub_main.c b/drivers/staging/usbip/stub_main.c
index 9c5832a..44ab43f 100644
--- a/drivers/staging/usbip/stub_main.c
+++ b/drivers/staging/usbip/stub_main.c
@@ -94,7 +94,7 @@
 
 	for (i = 0; i < MAX_BUSID; i++)
 		if (!busid_table[i].name[0]) {
-			strncpy(busid_table[i].name, busid, BUSID_SIZE);
+			strlcpy(busid_table[i].name, busid, BUSID_SIZE);
 			if ((busid_table[i].status != STUB_BUSID_ALLOC) &&
 			    (busid_table[i].status != STUB_BUSID_REMOV))
 				busid_table[i].status = STUB_BUSID_ADDED;
@@ -158,15 +158,11 @@
 	if (count < 5)
 		return -EINVAL;
 
-	/* strnlen() does not include \0 */
-	len = strnlen(buf + 4, BUSID_SIZE);
-
 	/* busid needs to include \0 termination */
-	if (!(len < BUSID_SIZE))
+	len = strlcpy(busid, buf + 4, BUSID_SIZE);
+	if (sizeof(busid) <= len)
 		return -EINVAL;
 
-	strncpy(busid, buf + 4, BUSID_SIZE);
-
 	if (!strncmp(buf, "add ", 4)) {
 		if (add_match_busid(busid) < 0)
 			return -ENOMEM;